Dorman M630305 Brake Master Cylinder

Reliable Brake Master Cylinder for Chrysler and Dodge Vehicles

The Dorman M630305 Brake Master Cylinder is designed to restore proper brake hydraulics in select Chrysler and Dodge models. Engineered with an aluminum body and integrated reservoir and sensor, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.

• Master cylinder bore diameter: 1 inch for precise hydraulic control
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir and sensor for complete brake system functionality
• Two outlets with 7/16-24 thread size for rearward and secondary connections
• Compatible with Chrysler Caravan, Grand Caravan, Pacifica, Town & Country, and Dodge Voyager

Product Details and Specifications

The Dorman M630305 master cylinder features a 1-inch bore diameter, which is critical for maintaining proper brake fluid pressure and pedal feel. Its aluminum construction offers enhanced durability and resistance to corrosion compared to traditional cast iron units. This part includes an integrated reservoir and sensor, allowing for seamless monitoring of brake fluid levels and system performance. The two outlets, both sized at 7/16-24 thread diameter, accommodate rearward and secondary brake line connections, ensuring compatibility with the brake hydraulics of Chrysler Caravan, Grand Caravan, Pacifica, Town & Country, and Dodge Voyager models.

Common Applications and Problem Resolution

• Restores brake fluid pressure in vehicles experiencing soft or spongy brake pedal feel
• Replaces master cylinders with leaking or damaged reservoirs
• Resolves brake warning light issues related to faulty fluid level sensors
• Addresses brake system failures caused by worn or corroded master cylinder components
• Improves overall brake system responsiveness and safety

Installation Notes and Tips

Installation of the Dorman M630305 master cylinder requires proper brake fluid handling and bleeding procedures to avoid air in the brake lines. Since mounting hardware is not included, retain original mounting bolts or source compatible hardware. Ensure the brake fluid reservoir is filled to the recommended level and verify sensor connections are secure before testing the brake system. Professional installation is recommended for optimal safety and performance.

Quality Assurance and Warranty Information

Dorman manufactures the M630305 master cylinder to meet or exceed OEM specifications for Chrysler and Dodge brake hydraulics. The aluminum construction and integrated sensor contribute to long-term reliability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to product documentation for exact warranty terms.